import sun.security.krb5.internal.crypto.CksumType;

class Student{
    //私有属性name
    private String name = "bit";
    //公有属性age
    public int age = 18;
    //不带参数的构造方法
    public Student(){
        System.out.println("Student()");
    }

    private Student(String name, int age){
        this.name = name;
        this.age = age;
        System.out.println("Student(String name, int age)");
    }

    private void eat(){
        System.out.println("I am eating");
    }

    public void sleep(){
        System.out.println("I am sleeping");
    }

    private void function(String str){
        System.out.println(str);
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}
public class Test {

    public static void main(String[] args) {
        //有3种方式可以获取class对象
        // 1.通过对象的getClass()方法
        Student student = new Student();
        Class<?> c1 = student.getClass();
        // 2.通过类名.class获取
        Class<?> c2 = Student.class;
        // 3.forName(”路径“) --------- 使用最多
        Class<?> c3 = null;
        try {
            c3 = Class.forName("Student");
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        }
    }
}
